To start , take a mother with the genotype Tt and a father with the genotype tt. (T=dominant, tall, t= recessive, short)
For the mother, because there is one T out of the two traits, there is a 1/2 chance that she will pass on her dominant allele, and correspondingly, there is a 1/2 chance she will pass on the recessive one.
The father, no matter what, will pass on a t, so he has a 1/1 chance.
If we wanted to find the probability of getting an offspring with the genotype Tt, we would consider the multiple ways to get that.
First off, we need the T from the mother, and theres a 1/2 chance of getting that.
From the father, we need a t to complete the Tt...and theres a 1/1 chance of getting a t from the father.
To combine these two probabilities, you must multiply them...so 1/2 x 1/1 = 1/2
There is a 50% chance of getting offspring with the genotype Tt.
I read this article about how ZymeQuest is working on a technology that could convert all types of blood to O, by removing the sugar molecules that dictate blood type. - lilymu May 20, 2008
Resources:
Unit OutlineAssignments: Family Pedigree Project , Beyond The Genome
Big Ideas:
Heredity
Heredity and Meiosis
Finding the Probabilities (Algebraically)
To start , take a mother with the genotype Tt and a father with the genotype tt. (T=dominant, tall, t= recessive, short)For the mother, because there is one T out of the two traits, there is a 1/2 chance that she will pass on her dominant allele, and correspondingly, there is a 1/2 chance she will pass on the recessive one.
The father, no matter what, will pass on a t, so he has a 1/1 chance.
If we wanted to find the probability of getting an offspring with the genotype Tt, we would consider the multiple ways to get that.
First off, we need the T from the mother, and theres a 1/2 chance of getting that.
From the father, we need a t to complete the Tt...and theres a 1/1 chance of getting a t from the father.
To combine these two probabilities, you must multiply them...so 1/2 x 1/1 = 1/2
There is a 50% chance of getting offspring with the genotype Tt.
Finding the Probabilities (Punnett Square)
Click here for a tutorial on Punnett Squares-
Incomplete Dominance
Pedigrees
Blood Type__
I read this article about how ZymeQuest is working on a technology that could convert all types of blood to O, by removing the sugar molecules that dictate blood type. -